Crane



June 24, 1930. H. P. ELLIOTT 1,765,408

CRANE Filed Feb. 4, 1924 .Trevenfioz; 9 M

UN E

HARMON r. ELLIOTT, F CAMBRIDGE, Massacrrusnrrs, risers-nor.

CRANE & ENGINEERENG COMPANY, or WICKLIFFE, on o, A

Patented June 24, 193% manta conronarron 0E OHiO CRANE Application filedFebruary 4; 1924. Serial No. 690,415. r

This invention relates to a traveling crane and" hoist and particularlyto an overhead crane adapted to be movedmanually on its track beyond thewall of a building to engage and raise loads from a lower level, as"from a truck, and convey them within the building. I I I The particulartype of overhead crane with which thisinvention is concerned is adaptedto be moved alongits overhead track by an operator who pushes or pullson the load to move the crane. The crane usually has a self-containedelectric motor which operates the hoisting apparatus, and 15 the motoris usually controlled by two pull cords, which cords may depend directlybelow the crane. When this type of crane is employed to raise loadsdisposed externally of the building, the crane is moved upon theoutwardly-extended portion of the track into a position substantiallyvertically over the load. ,The crane,'therefore, is usually aconsiderable distance beyond-thewall of the building. The operative isthereby compelled to lean outwardly beyond the wall in order to engageand operate the motorc'ontrolling cords and also to grasp the load,whereby to move the crane and load into the building. Thereis,consequently, the very grave danger that, the operative may slip andfall out of the building and become injured.

- An object of this invention is the provision of a travelingcrane withmeans where by the crane may be moved manually in and out of a buildingandv the power-actuated hoisting apparatus thereof controlled to raiseor lower its loadby an operative locatjed entirely within the-buildingand, thereby, ina safe position. v 1 r In carrying out the invention, Imay provide the'crane with'a handle which preferably is pivoted to the.crane and extends rearwardly and, preferably,also downwardly therefrom;"and said handle may be provided with motor-controlling means at,preferably, its lower end, whereby the crane may be moved to a positionexternal of the building and withdrawn, and its motor controlled, by anoperative manipulating the To Tran CLEVELAND M free end of the handleand di in a i 'i the construction and operation of traveling cranes. I Y

Fig. 1 is a sideelevation of the invention lllustrating the manner inwhich it may be used. a

7 Fig.2 is a detailed side elevation illusof the crane and the handle. v

Fig. 3 is-an end elevation, in detail, of the means to secure the handleto the crane. Fig. 4: is an end elevation of the rear end of the'craneand illustrating more particularly the means to secure the handle invertical, orv out-of-use, position to the crane.

As here shown, the overhead traveling crane embodying the invention mayinclude the casing 10 which encloses the electric motor and the hoistingor raising and lowering apparatus, from which apparatus the flexiblecable 11' may depend for raising and lowering a load. The crane may besuspended movably by wheels 12 from an overhead track 13. Said track maybe secured in an elevated position, as to the ceiling of r the buildingand extended outwardly through a window or door l4; in the wall 15 ofthebuilding for the purpose of support ing the crane "in position to raiseand lower loads from and to some lower position, as, from a truck; whichloads are adapted to be passed through the window or door 14; by asuitable movement of the crane along the track.

abutment is adapted to be e gag d by h Preferably, also, the

trating the connectionbetween the rear end The track may beprovided'with 7 .an abutment 13? at its outermost end, which crane,thereby to restrict the extent of outward movement thereof.

In accordance with this invention, the crane is provided with meansadapted to be located at all times within the building and by which tocontrol the raisingand lowering of the cable 11 and by which the cranemay be moved manually along its track. Said means may include the rigidcontrol handle or pole 20, which handle is adapted to be secured to therear portion 10 of the crane casing and extend rearwardly and, when inuse, downwardly therefrom. The lower or free end of said handle isadapted to be grasped by an operative and pushed or pulled upon to movethe crane and its load along the track. The length of said handle isadapted-to be such that'the free end thereof is disposed withinthebuilding when the craneis at the outermostend of its rack, whereby torender it unnecessary for the operative to lean out of the building.Preferably said handle is pivotally secured removably to the crane. Thesecuring means may include-a sectional connectingmember comprising thecomplemental semicircularly shaped yokes 21 and 22,; which yolres may beclamped removably aboutthe cylindrically-formed rear end-portion 10 ofthe crane casing by the bolts 23 and 24. The upper end of said handlemay be disposed between the lower endsof said yokes and supportedpivotally on the lower bolt 24. Preferably means are provided to supportthe handle in a convenient position to be grasped by an operative. Saidmeans may include a tension spring 25, the lower end of which may besecured pivotally, or

otherwise, to the handle. The other end of said spring may be securedloosely to one end of an arm 26, which arm-may be pivoted at its otherend on the bolt 23, andsupported against pivotal movement in a downwarddirection by engagement with a suitable stop-member as acasing-flangelO. The arrangement is or may be such that the spring 'willsupport the handle in a convenient operating position and yet may permitthe handle to be depressed or raised if and when desired. When the craneis not in use, said pole may be moved into a more or less elevated andhorizontal pos1t1on, as indicated by the dotted lines, Fig. 2, andretained removably in such position by suitable'means as the springlatch 28, which latch may be secured to the crane casing 10. Said latchis adapted to be engaged by a projection, as a pin 29, of hehandle,whereby to retain it releasingly in horizontal position; and thelatch is adapted to yield and release the pin when the handle ispulled'downwardly with sufiicient force.

The construction and arrangement of spring 25 and arm 26 is or may besuch as to permit the handle to be raised to ahorivice including a loadcarrier and a load zontal position, as indicated by the dotted lines,Fig. 2, and the arm 22 may pivot about said bolt 23 to permit suchmovement of the r handle.

Said handle preferably is hollow and a flexible electric cable, 32.;isor may be extended through the pole from suitable motor controllingapparatus carried by the crane. Said cable is preferably formed with aflexible loop at its pass between the pole and crane casing whereby topermit the pole to move freely about its'pivotal connection with thecasing. 7

Suitable motor-control switches may be contained in a switch-casing 34;,which case 30 ing may be carried'by the pole at the free end thereof andsaid switches may have exposed circuit-control buttons 35 and 36, one ofwhich may be arranged to bemain tained in a depressed position to raise,ama the other, to lower the load. Whenneithei' switch is depressed, themotor may hold the lead against vertical "movement The ing.

Iclaim; H I I 1. An overhead" trackftype traveling device including acarrier and a hoist and havk inga handle extended rearwardly an'd down-*wardly therefrom, -;means connecting said handle pivotally with saiddevice for'ver- 'tical pivotal movement, and yielding means to restrictthe downward movement 'ofsaid handle." j 2. An overhead track typetraveling device including a load carrier anda hoist: and having ahandle extended rearwardly and downwardly therefrom, means connectingsaid handle pivotally with said device for vertical pivotal movement,means to restrict the downward movement of saidh'alr' dle, and means toreleasably hold said h an-. dle in its upper position.

3. An overhead track type traveling del handling mechanism, an enclosingcasing for said mechanism, a sectional connecting mem- "ber'8I1C11Cl1Ilg sald casing, means detachably connecting the sections ofsaid connecting member together, meansfor detachably connecting saidconnecting member to said casing, and a handle pivoted on oneof saidmeans and extended rearwardly fromthe device. V I 1 4:. An overheadtrack type. traveling device including a load carrier and a hoist and 10 having a handle extended rearwardly and downwardly therefrom, meansconnecting the forward end of said handle pivotally with said device forvertical pivotal movement, and means rearwardl of the pivot foryieldably suspending sald handle from the device.

5. An overhead track type traveling device including a load carrier anda hoist and having a handle extended-rearwardly and downwardlytherefrom, means for connecting said handle pivotally with said devicefor vertical pivotal movement, and yielding supporting means for saidhandle, including an arm pivotally connected at one end with said deviceand a spring connecting I the free end of said arm and said handle.

6. An overhead track type traveling de-- vice including a carrier and aload carrying.

means, a handle extended rearwardly and]v downwardly from said device,means con-- necting said handle pivotally with said device, for verticalpivotal movement, and yielding supporting means for said handle,including an arm pivoted to said device for vertical movement, a stopmember arranged to limit the downward pivotal movement of said arm, anda tension spring connecting said handle and said arm.

In testimony whereof, I have signed my name to this specification.

HARMON P. ELLIOTT.

